1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "ColorUtils"
19
20#include <inttypes.h>
21#include <arpa/inet.h>
22#include <media/stagefright/foundation/ABuffer.h>
23#include <media/stagefright/foundation/ADebug.h>
24#include <media/stagefright/foundation/ALookup.h>
25#include <media/stagefright/foundation/ColorUtils.h>
26
27namespace android {
28
29// shortcut names for brevity in the following tables
30typedef ColorAspects CA;
31typedef ColorUtils CU;
32
33#define HI_UINT16(a) (((a) >> 8) & 0xFF)
34#define LO_UINT16(a) ((a) & 0xFF)
35
36const static
37ALookup<CU::ColorRange, CA::Range> sRanges{
38    {
39        { CU::kColorRangeLimited, CA::RangeLimited },
40        { CU::kColorRangeFull, CA::RangeFull },
41        { CU::kColorRangeUnspecified, CA::RangeUnspecified },
42    }
43};
44
45const static
46ALookup<CU::ColorStandard, std::pair<CA::Primaries, CA::MatrixCoeffs>> sStandards {
47    {
48        { CU::kColorStandardUnspecified,    { CA::PrimariesUnspecified, CA::MatrixUnspecified } },
49        { CU::kColorStandardBT709,          { CA::PrimariesBT709_5, CA::MatrixBT709_5 } },
50        { CU::kColorStandardBT601_625,      { CA::PrimariesBT601_6_625, CA::MatrixBT601_6 } },
51        { CU::kColorStandardBT601_625_Unadjusted,
52                                            // this is a really close match
53                                            { CA::PrimariesBT601_6_625, CA::MatrixBT709_5 } },
54        { CU::kColorStandardBT601_525,      { CA::PrimariesBT601_6_525, CA::MatrixBT601_6 } },
55        { CU::kColorStandardBT601_525_Unadjusted,
56                                            { CA::PrimariesBT601_6_525, CA::MatrixSMPTE240M } },
57        { CU::kColorStandardBT2020,         { CA::PrimariesBT2020, CA::MatrixBT2020 } },
58        { CU::kColorStandardBT2020Constant, { CA::PrimariesBT2020, CA::MatrixBT2020Constant } },
59        { CU::kColorStandardBT470M,         { CA::PrimariesBT470_6M, CA::MatrixBT470_6M } },
60        // NOTE: there is no close match to the matrix used by standard film, chose closest
61        { CU::kColorStandardFilm,           { CA::PrimariesGenericFilm, CA::MatrixBT2020 } },
62    }
63};
64
65const static
66ALookup<CU::ColorTransfer, CA::Transfer> sTransfers{
67    {
68        { CU::kColorTransferUnspecified,    CA::TransferUnspecified },
69        { CU::kColorTransferLinear,         CA::TransferLinear },
70        { CU::kColorTransferSRGB,           CA::TransferSRGB },
71        { CU::kColorTransferSMPTE_170M,     CA::TransferSMPTE170M },
72        { CU::kColorTransferGamma22,        CA::TransferGamma22 },
73        { CU::kColorTransferGamma28,        CA::TransferGamma28 },
74        { CU::kColorTransferST2084,         CA::TransferST2084 },
75        { CU::kColorTransferHLG,            CA::TransferHLG },
76    }
77};
78
79static bool isValid(ColorAspects::Primaries p) {
80    return p <= ColorAspects::PrimariesOther;
81}
82
83static bool isDefined(ColorAspects::Primaries p) {
84    return p <= ColorAspects::PrimariesBT2020;
85}
86
87static bool isValid(ColorAspects::MatrixCoeffs c) {
88    return c <= ColorAspects::MatrixOther;
89}
90
91static bool isDefined(ColorAspects::MatrixCoeffs c) {
92    return c <= ColorAspects::MatrixBT2020Constant;
93}
94
95//static
96int32_t ColorUtils::wrapColorAspectsIntoColorStandard(
97        ColorAspects::Primaries primaries, ColorAspects::MatrixCoeffs coeffs) {
98    ColorStandard res;
99    if (sStandards.map(std::make_pair(primaries, coeffs), &res)) {
100        return res;
101    } else if (!isValid(primaries) || !isValid(coeffs)) {
102        return kColorStandardUnspecified;
103    }
104
105    // check platform media limits
106    uint32_t numPrimaries = ColorAspects::PrimariesBT2020 + 1;
107    if (isDefined(primaries) && isDefined(coeffs)) {
108        return kColorStandardExtendedStart + primaries + coeffs * numPrimaries;
109    } else {
110        return kColorStandardVendorStart + primaries + coeffs * 0x100;
111    }
112}
113
114//static
115status_t ColorUtils::unwrapColorAspectsFromColorStandard(
116        int32_t standard,
117        ColorAspects::Primaries *primaries, ColorAspects::MatrixCoeffs *coeffs) {
118    std::pair<ColorAspects::Primaries, ColorAspects::MatrixCoeffs> res;
119    if (sStandards.map((ColorStandard)standard, &res)) {
120        *primaries = res.first;
121        *coeffs = res.second;
122        return OK;
123    }
124
125    int32_t start = kColorStandardExtendedStart;
126    int32_t numPrimaries = ColorAspects::PrimariesBT2020 + 1;
127    int32_t numCoeffs = ColorAspects::MatrixBT2020Constant + 1;
128    if (standard >= (int32_t)kColorStandardVendorStart) {
129        start = kColorStandardVendorStart;
130        numPrimaries = ColorAspects::PrimariesOther + 1; // 0x100
131        numCoeffs = ColorAspects::MatrixOther + 1; // 0x100;
132    }
133    if (standard >= start && standard < start + numPrimaries * numCoeffs) {
134        int32_t product = standard - start;
135        *primaries = (ColorAspects::Primaries)(product % numPrimaries);
136        *coeffs = (ColorAspects::MatrixCoeffs)(product / numPrimaries);
137        return OK;
138    }
139    *primaries = ColorAspects::PrimariesOther;
140    *coeffs = ColorAspects::MatrixOther;
141    return BAD_VALUE;
142}
143
144static bool isValid(ColorAspects::Range r) {
145    return r <= ColorAspects::RangeOther;
146}
147
148static bool isDefined(ColorAspects::Range r) {
149    return r <= ColorAspects::RangeLimited;
150}
151
152//  static
153int32_t ColorUtils::wrapColorAspectsIntoColorRange(ColorAspects::Range range) {
154    ColorRange res;
155    if (sRanges.map(range, &res)) {
156        return res;
157    } else if (!isValid(range)) {
158        return kColorRangeUnspecified;
159    } else {
160        CHECK(!isDefined(range));
161        // all platform values are in sRanges
162        return kColorRangeVendorStart + range;
163    }
164}
165
166//static
167status_t ColorUtils::unwrapColorAspectsFromColorRange(
168        int32_t range, ColorAspects::Range *aspect) {
169    if (sRanges.map((ColorRange)range, aspect)) {
170        return OK;
171    }
172
173    int32_t start = kColorRangeVendorStart;
174    int32_t numRanges = ColorAspects::RangeOther + 1; // 0x100
175    if (range >= start && range < start + numRanges) {
176        *aspect = (ColorAspects::Range)(range - start);
177        return OK;
178    }
179    *aspect = ColorAspects::RangeOther;
180    return BAD_VALUE;
181}
182
183static bool isValid(ColorAspects::Transfer t) {
184    return t <= ColorAspects::TransferOther;
185}
186
187static bool isDefined(ColorAspects::Transfer t) {
188    return t <= ColorAspects::TransferHLG
189            || (t >= ColorAspects::TransferSMPTE240M && t <= ColorAspects::TransferST428);
190}
191
192//  static
193int32_t ColorUtils::wrapColorAspectsIntoColorTransfer(
194        ColorAspects::Transfer transfer) {
195    ColorTransfer res;
196    if (sTransfers.map(transfer, &res)) {
197        return res;
198    } else if (!isValid(transfer)) {
199        return kColorTransferUnspecified;
200    } else if (isDefined(transfer)) {
201        return kColorTransferExtendedStart + transfer;
202    } else {
203        // all platform values are in sRanges
204        return kColorTransferVendorStart + transfer;
205    }
206}
207
208//static
209status_t ColorUtils::unwrapColorAspectsFromColorTransfer(
210        int32_t transfer, ColorAspects::Transfer *aspect) {
211    if (sTransfers.map((ColorTransfer)transfer, aspect)) {
212        return OK;
213    }
214
215    int32_t start = kColorTransferExtendedStart;
216    int32_t numTransfers = ColorAspects::TransferST428 + 1;
217    if (transfer >= (int32_t)kColorTransferVendorStart) {
218        start = kColorTransferVendorStart;
219        numTransfers = ColorAspects::TransferOther + 1; // 0x100
220    }
221    if (transfer >= start && transfer < start + numTransfers) {
222        *aspect = (ColorAspects::Transfer)(transfer - start);
223        return OK;
224    }
225    *aspect = ColorAspects::TransferOther;
226    return BAD_VALUE;
227}
228
229// static
230status_t ColorUtils::convertPlatformColorAspectsToCodecAspects(
231    int32_t range, int32_t standard, int32_t transfer, ColorAspects &aspects) {
232    status_t res1 = unwrapColorAspectsFromColorRange(range, &aspects.mRange);
233    status_t res2 = unwrapColorAspectsFromColorStandard(
234            standard, &aspects.mPrimaries, &aspects.mMatrixCoeffs);
235    status_t res3 = unwrapColorAspectsFromColorTransfer(transfer, &aspects.mTransfer);
236    return res1 != OK ? res1 : (res2 != OK ? res2 : res3);
237}
238
239// static
240status_t ColorUtils::convertCodecColorAspectsToPlatformAspects(
241    const ColorAspects &aspects, int32_t *range, int32_t *standard, int32_t *transfer) {
242    *range = wrapColorAspectsIntoColorRange(aspects.mRange);
243    *standard = wrapColorAspectsIntoColorStandard(aspects.mPrimaries, aspects.mMatrixCoeffs);
244    *transfer = wrapColorAspectsIntoColorTransfer(aspects.mTransfer);
245    if (isValid(aspects.mRange) && isValid(aspects.mPrimaries)
246            && isValid(aspects.mMatrixCoeffs) && isValid(aspects.mTransfer)) {
247        return OK;
248    } else {
249        return BAD_VALUE;
250    }
251}
252
253const static
254ALookup<int32_t, ColorAspects::Primaries> sIsoPrimaries {
255    {
256        { 1, ColorAspects::PrimariesBT709_5 },
257        { 2, ColorAspects::PrimariesUnspecified },
258        { 4, ColorAspects::PrimariesBT470_6M },
259        { 5, ColorAspects::PrimariesBT601_6_625 },
260        { 6, ColorAspects::PrimariesBT601_6_525 /* main */},
261        { 7, ColorAspects::PrimariesBT601_6_525 },
262        // -- ITU T.832 201201 ends here
263        { 8, ColorAspects::PrimariesGenericFilm },
264        { 9, ColorAspects::PrimariesBT2020 },
265        { 10, ColorAspects::PrimariesOther /* XYZ */ },
266    }
267};
268
269const static
270ALookup<int32_t, ColorAspects::Transfer> sIsoTransfers {
271    {
272        { 1, ColorAspects::TransferSMPTE170M /* main */},
273        { 2, ColorAspects::TransferUnspecified },
274        { 4, ColorAspects::TransferGamma22 },
275        { 5, ColorAspects::TransferGamma28 },
276        { 6, ColorAspects::TransferSMPTE170M },
277        { 7, ColorAspects::TransferSMPTE240M },
278        { 8, ColorAspects::TransferLinear },
279        { 9, ColorAspects::TransferOther /* log 100:1 */ },
280        { 10, ColorAspects::TransferOther /* log 316:1 */ },
281        { 11, ColorAspects::TransferXvYCC },
282        { 12, ColorAspects::TransferBT1361 },
283        { 13, ColorAspects::TransferSRGB },
284        // -- ITU T.832 201201 ends here
285        { 14, ColorAspects::TransferSMPTE170M },
286        { 15, ColorAspects::TransferSMPTE170M },
287        { 16, ColorAspects::TransferST2084 },
288        { 17, ColorAspects::TransferST428 },
289    }
290};
291
292const static
293ALookup<int32_t, ColorAspects::MatrixCoeffs> sIsoMatrixCoeffs {
294    {
295        { 0, ColorAspects::MatrixOther },
296        { 1, ColorAspects::MatrixBT709_5 },
297        { 2, ColorAspects::MatrixUnspecified },
298        { 4, ColorAspects::MatrixBT470_6M },
299        { 6, ColorAspects::MatrixBT601_6 /* main */ },
300        { 5, ColorAspects::MatrixBT601_6 },
301        { 7, ColorAspects::MatrixSMPTE240M },
302        { 8, ColorAspects::MatrixOther /* YCgCo */ },
303        // -- ITU T.832 201201 ends here
304        { 9, ColorAspects::MatrixBT2020 },
305        { 10, ColorAspects::MatrixBT2020Constant },
306    }
307};
308
309// static
310void ColorUtils::convertCodecColorAspectsToIsoAspects(
311        const ColorAspects &aspects,
312        int32_t *primaries, int32_t *transfer, int32_t *coeffs, bool *fullRange) {
313    if (aspects.mPrimaries == ColorAspects::PrimariesOther ||
314            !sIsoPrimaries.map(aspects.mPrimaries, primaries)) {
315        CHECK(sIsoPrimaries.map(ColorAspects::PrimariesUnspecified, primaries));
316    }
317    if (aspects.mTransfer == ColorAspects::TransferOther ||
318            !sIsoTransfers.map(aspects.mTransfer, transfer)) {
319        CHECK(sIsoTransfers.map(ColorAspects::TransferUnspecified, transfer));
320    }
321    if (aspects.mMatrixCoeffs == ColorAspects::MatrixOther ||
322            !sIsoMatrixCoeffs.map(aspects.mMatrixCoeffs, coeffs)) {
323        CHECK(sIsoMatrixCoeffs.map(ColorAspects::MatrixUnspecified, coeffs));
324    }
325    *fullRange = aspects.mRange == ColorAspects::RangeFull;
326}
327
328// static
329void ColorUtils::convertIsoColorAspectsToCodecAspects(
330        int32_t primaries, int32_t transfer, int32_t coeffs, bool fullRange,
331        ColorAspects &aspects) {
332    if (!sIsoPrimaries.map(primaries, &aspects.mPrimaries)) {
333        aspects.mPrimaries = ColorAspects::PrimariesUnspecified;
334    }
335    if (!sIsoTransfers.map(transfer, &aspects.mTransfer)) {
336        aspects.mTransfer = ColorAspects::TransferUnspecified;
337    }
338    if (!sIsoMatrixCoeffs.map(coeffs, &aspects.mMatrixCoeffs)) {
339        aspects.mMatrixCoeffs = ColorAspects::MatrixUnspecified;
340    }
341    aspects.mRange = fullRange ? ColorAspects::RangeFull : ColorAspects::RangeLimited;
342}
343
344// static
345void ColorUtils::setDefaultCodecColorAspectsIfNeeded(
346        ColorAspects &aspects, int32_t width, int32_t height) {
347    ColorAspects::MatrixCoeffs coeffs;
348    ColorAspects::Primaries primaries;
349
350    // Default to BT2020, BT709 or BT601 based on size. Allow 2.35:1 aspect ratio. Limit BT601
351    // to PAL or smaller, BT2020 to 4K or larger, leaving BT709 for all resolutions in between.
352    if (width >= 3840 || height >= 3840 || width * (int64_t)height >= 3840 * 1634) {
353        primaries = ColorAspects::PrimariesBT2020;
354        coeffs = ColorAspects::MatrixBT2020;
355    } else if ((width <= 720 && height > 480 && height <= 576)
356            || (height <= 720 && width > 480 && width <= 576)) {
357        primaries = ColorAspects::PrimariesBT601_6_625;
358        coeffs = ColorAspects::MatrixBT601_6;
359    } else if ((width <= 720 && height <= 480) || (height <= 720 && width <= 480)) {
360        primaries = ColorAspects::PrimariesBT601_6_525;
361        coeffs = ColorAspects::MatrixBT601_6;
362    } else {
363        primaries = ColorAspects::PrimariesBT709_5;
364        coeffs = ColorAspects::MatrixBT709_5;
365    }
366
367    if (aspects.mRange == ColorAspects::RangeUnspecified) {
368        aspects.mRange = ColorAspects::RangeLimited;
369    }
370
371    if (aspects.mPrimaries == ColorAspects::PrimariesUnspecified) {
372        aspects.mPrimaries = primaries;
373    }
374    if (aspects.mMatrixCoeffs == ColorAspects::MatrixUnspecified) {
375        aspects.mMatrixCoeffs = coeffs;
376    }
377    if (aspects.mTransfer == ColorAspects::TransferUnspecified) {
378        aspects.mTransfer = ColorAspects::TransferSMPTE170M;
379    }
380}
381
382// TODO: move this into a Video HAL
383ALookup<CU::ColorStandard, std::pair<CA::Primaries, CA::MatrixCoeffs>> sStandardFallbacks {
384    {
385        { CU::kColorStandardBT601_625, { CA::PrimariesBT709_5, CA::MatrixBT470_6M } },
386        { CU::kColorStandardBT601_625, { CA::PrimariesBT709_5, CA::MatrixBT601_6 } },
387        { CU::kColorStandardBT709,     { CA::PrimariesBT709_5, CA::MatrixSMPTE240M } },
388        { CU::kColorStandardBT709,     { CA::PrimariesBT709_5, CA::MatrixBT2020 } },
389        { CU::kColorStandardBT601_525, { CA::PrimariesBT709_5, CA::MatrixBT2020Constant } },
390
391        { CU::kColorStandardBT2020Constant,
392                                       { CA::PrimariesBT470_6M, CA::MatrixBT2020Constant } },
393
394        { CU::kColorStandardBT601_625, { CA::PrimariesBT601_6_625, CA::MatrixBT470_6M } },
395        { CU::kColorStandardBT601_525, { CA::PrimariesBT601_6_625, CA::MatrixBT2020Constant } },
396
397        { CU::kColorStandardBT601_525, { CA::PrimariesBT601_6_525, CA::MatrixBT470_6M } },
398        { CU::kColorStandardBT601_525, { CA::PrimariesBT601_6_525, CA::MatrixBT2020Constant } },
399
400        { CU::kColorStandardBT2020Constant,
401                                       { CA::PrimariesGenericFilm, CA::MatrixBT2020Constant } },
402    }
403};
404
405ALookup<CU::ColorStandard, CA::Primaries> sStandardPrimariesFallbacks {
406    {
407        { CU::kColorStandardFilm,                 CA::PrimariesGenericFilm },
408        { CU::kColorStandardBT470M,               CA::PrimariesBT470_6M },
409        { CU::kColorStandardBT2020,               CA::PrimariesBT2020 },
410        { CU::kColorStandardBT601_525_Unadjusted, CA::PrimariesBT601_6_525 },
411        { CU::kColorStandardBT601_625_Unadjusted, CA::PrimariesBT601_6_625 },
412    }
413};
414
415static ALookup<android_dataspace, android_dataspace> sLegacyDataSpaceToV0 {
416    {
417        { HAL_DATASPACE_SRGB, HAL_DATASPACE_V0_SRGB },
418        { HAL_DATASPACE_BT709, HAL_DATASPACE_V0_BT709 },
419        { HAL_DATASPACE_SRGB_LINEAR, HAL_DATASPACE_V0_SRGB_LINEAR },
420        { HAL_DATASPACE_BT601_525, HAL_DATASPACE_V0_BT601_525 },
421        { HAL_DATASPACE_BT601_625, HAL_DATASPACE_V0_BT601_625 },
422        { HAL_DATASPACE_JFIF, HAL_DATASPACE_V0_JFIF },
423    }
424};
425
426bool ColorUtils::convertDataSpaceToV0(android_dataspace &dataSpace) {
427    (void)sLegacyDataSpaceToV0.lookup(dataSpace, &dataSpace);
428    return (dataSpace & 0xC000FFFF) == 0;
429}
430
431bool ColorUtils::checkIfAspectsChangedAndUnspecifyThem(
432        ColorAspects &aspects, const ColorAspects &orig, bool usePlatformAspects) {
433    // remove changed aspects (change them to Unspecified)
434    bool changed = false;
435    if (aspects.mRange && aspects.mRange != orig.mRange) {
436        aspects.mRange = ColorAspects::RangeUnspecified;
437        changed = true;
438    }
439    if (aspects.mPrimaries && aspects.mPrimaries != orig.mPrimaries) {
440        aspects.mPrimaries = ColorAspects::PrimariesUnspecified;
441        if (usePlatformAspects) {
442            aspects.mMatrixCoeffs = ColorAspects::MatrixUnspecified;
443        }
444        changed = true;
445    }
446    if (aspects.mMatrixCoeffs && aspects.mMatrixCoeffs != orig.mMatrixCoeffs) {
447        aspects.mMatrixCoeffs = ColorAspects::MatrixUnspecified;
448        if (usePlatformAspects) {
449            aspects.mPrimaries = ColorAspects::PrimariesUnspecified;
450        }
451        changed = true;
452    }
453    if (aspects.mTransfer && aspects.mTransfer != orig.mTransfer) {
454        aspects.mTransfer = ColorAspects::TransferUnspecified;
455        changed = true;
456    }
457    return changed;
458}
459
460// static
461android_dataspace ColorUtils::getDataSpaceForColorAspects(ColorAspects &aspects, bool mayExpand) {
462    // This platform implementation never expands color space (e.g. returns an expanded
463    // dataspace to use where the codec does in-the-background color space conversion)
464    mayExpand = false;
465
466    if (aspects.mRange == ColorAspects::RangeUnspecified
467            || aspects.mPrimaries == ColorAspects::PrimariesUnspecified
468            || aspects.mMatrixCoeffs == ColorAspects::MatrixUnspecified
469            || aspects.mTransfer == ColorAspects::TransferUnspecified) {
470        ALOGW("expected specified color aspects (%u:%u:%u:%u)",
471                aspects.mRange, aspects.mPrimaries, aspects.mMatrixCoeffs, aspects.mTransfer);
472    }
473
474    // default to video range and transfer
475    ColorRange range = kColorRangeLimited;
476    ColorTransfer transfer = kColorTransferSMPTE_170M;
477    (void)sRanges.map(aspects.mRange, &range);
478    (void)sTransfers.map(aspects.mTransfer, &transfer);
479
480    ColorStandard standard = kColorStandardBT709;
481    auto pair = std::make_pair(aspects.mPrimaries, aspects.mMatrixCoeffs);
482    if (!sStandards.map(pair, &standard)) {
483        if (!sStandardFallbacks.map(pair, &standard)) {
484            (void)sStandardPrimariesFallbacks.map(aspects.mPrimaries, &standard);
485
486            if (aspects.mMatrixCoeffs == ColorAspects::MatrixBT2020Constant) {
487                range = kColorRangeFull;
488            }
489        }
490    }
491
492    android_dataspace dataSpace = (android_dataspace)(
493            (range << HAL_DATASPACE_RANGE_SHIFT) | (standard << HAL_DATASPACE_STANDARD_SHIFT) |
494            (transfer << HAL_DATASPACE_TRANSFER_SHIFT));
495    (void)sLegacyDataSpaceToV0.rlookup(dataSpace, &dataSpace);
496
497    if (!mayExpand) {
498        // update codec aspects based on dataspace
499        convertPlatformColorAspectsToCodecAspects(range, standard, transfer, aspects);
500    }
501    return dataSpace;
502}
503
504// static
505void ColorUtils::getColorConfigFromFormat(
506        const sp<AMessage> &format, int32_t *range, int32_t *standard, int32_t *transfer) {
507    if (!format->findInt32("color-range", range)) {
508        *range = kColorRangeUnspecified;
509    }
510    if (!format->findInt32("color-standard", standard)) {
511        *standard = kColorStandardUnspecified;
512    }
513    if (!format->findInt32("color-transfer", transfer)) {
514        *transfer = kColorTransferUnspecified;
515    }
516}
517
518// static
519void ColorUtils::copyColorConfig(const sp<AMessage> &source, sp<AMessage> &target) {
520    // 0 values are unspecified
521    int32_t value;
522    if (source->findInt32("color-range", &value)) {
523        target->setInt32("color-range", value);
524    }
525    if (source->findInt32("color-standard", &value)) {
526        target->setInt32("color-standard", value);
527    }
528    if (source->findInt32("color-transfer", &value)) {
529        target->setInt32("color-transfer", value);
530    }
531}
532
533// static
534void ColorUtils::getColorAspectsFromFormat(const sp<AMessage> &format, ColorAspects &aspects) {
535    int32_t range, standard, transfer;
536    getColorConfigFromFormat(format, &range, &standard, &transfer);
537
538    if (convertPlatformColorAspectsToCodecAspects(
539            range, standard, transfer, aspects) != OK) {
540        ALOGW("Ignoring illegal color aspects(R:%d(%s), S:%d(%s), T:%d(%s))",
541                range, asString((ColorRange)range),
542                standard, asString((ColorStandard)standard),
543                transfer, asString((ColorTransfer)transfer));
544        // Invalid values were converted to unspecified !params!, but otherwise were not changed
545        // For encoders, we leave these as is. For decoders, we will use default values.
546    }
547    ALOGV("Got color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) "
548          "from format (out:R:%d(%s), S:%d(%s), T:%d(%s))",
549            aspects.mRange, asString(aspects.mRange),
550            aspects.mPrimaries, asString(aspects.mPrimaries),
551            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
552            aspects.mTransfer, asString(aspects.mTransfer),
553            range, asString((ColorRange)range),
554            standard, asString((ColorStandard)standard),
555            transfer, asString((ColorTransfer)transfer));
556}
557
558// static
559void ColorUtils::setColorAspectsIntoFormat(
560        const ColorAspects &aspects, sp<AMessage> &format, bool force) {
561    int32_t range = 0, standard = 0, transfer = 0;
562    convertCodecColorAspectsToPlatformAspects(aspects, &range, &standard, &transfer);
563    // save set values to base output format
564    // (encoder input format will read back actually supported values by the codec)
565    if (range != 0 || force) {
566        format->setInt32("color-range", range);
567    }
568    if (standard != 0 || force) {
569        format->setInt32("color-standard", standard);
570    }
571    if (transfer != 0 || force) {
572        format->setInt32("color-transfer", transfer);
573    }
574    ALOGV("Setting color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) "
575          "into format (out:R:%d(%s), S:%d(%s), T:%d(%s))",
576            aspects.mRange, asString(aspects.mRange),
577            aspects.mPrimaries, asString(aspects.mPrimaries),
578            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
579            aspects.mTransfer, asString(aspects.mTransfer),
580            range, asString((ColorRange)range),
581            standard, asString((ColorStandard)standard),
582            transfer, asString((ColorTransfer)transfer));
583}
584
585// static
586void ColorUtils::setHDRStaticInfoIntoFormat(
587        const HDRStaticInfo &info, sp<AMessage> &format) {
588    sp<ABuffer> infoBuffer = new ABuffer(25);
589
590    // Convert the data in infoBuffer to little endian format as defined by CTA-861-3
591    uint8_t *data = infoBuffer->data();
592    // Static_Metadata_Descriptor_ID
593    data[0] = info.mID;
594
595    // display primary 0
596    data[1] = LO_UINT16(info.sType1.mR.x);
597    data[2] = HI_UINT16(info.sType1.mR.x);
598    data[3] = LO_UINT16(info.sType1.mR.y);
599    data[4] = HI_UINT16(info.sType1.mR.y);
600
601    // display primary 1
602    data[5] = LO_UINT16(info.sType1.mG.x);
603    data[6] = HI_UINT16(info.sType1.mG.x);
604    data[7] = LO_UINT16(info.sType1.mG.y);
605    data[8] = HI_UINT16(info.sType1.mG.y);
606
607    // display primary 2
608    data[9] = LO_UINT16(info.sType1.mB.x);
609    data[10] = HI_UINT16(info.sType1.mB.x);
610    data[11] = LO_UINT16(info.sType1.mB.y);
611    data[12] = HI_UINT16(info.sType1.mB.y);
612
613    // white point
614    data[13] = LO_UINT16(info.sType1.mW.x);
615    data[14] = HI_UINT16(info.sType1.mW.x);
616    data[15] = LO_UINT16(info.sType1.mW.y);
617    data[16] = HI_UINT16(info.sType1.mW.y);
618
619    // MaxDisplayLuminance
620    data[17] = LO_UINT16(info.sType1.mMaxDisplayLuminance);
621    data[18] = HI_UINT16(info.sType1.mMaxDisplayLuminance);
622
623    // MinDisplayLuminance
624    data[19] = LO_UINT16(info.sType1.mMinDisplayLuminance);
625    data[20] = HI_UINT16(info.sType1.mMinDisplayLuminance);
626
627    // MaxContentLightLevel
628    data[21] = LO_UINT16(info.sType1.mMaxContentLightLevel);
629    data[22] = HI_UINT16(info.sType1.mMaxContentLightLevel);
630
631    // MaxFrameAverageLightLevel
632    data[23] = LO_UINT16(info.sType1.mMaxFrameAverageLightLevel);
633    data[24] = HI_UINT16(info.sType1.mMaxFrameAverageLightLevel);
634
635    format->setBuffer("hdr-static-info", infoBuffer);
636}
637
638// a simple method copied from Utils.cpp
639static uint16_t U16LE_AT(const uint8_t *ptr) {
640    return ptr[0] | (ptr[1] << 8);
641}
642
643// static
644bool ColorUtils::getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info) {
645    sp<ABuffer> buf;
646    if (!format->findBuffer("hdr-static-info", &buf)) {
647        return false;
648    }
649
650    // TODO: Make this more flexible when adding more members to HDRStaticInfo
651    if (buf->size() != 25 /* static Metadata Type 1 size */) {
652        ALOGW("Ignore invalid HDRStaticInfo with size: %zu", buf->size());
653        return false;
654    }
655
656    const uint8_t *data = buf->data();
657    if (*data != HDRStaticInfo::kType1) {
658        ALOGW("Unsupported static Metadata Type %u", *data);
659        return false;
660    }
661
662    info->mID = HDRStaticInfo::kType1;
663    info->sType1.mR.x = U16LE_AT(&data[1]);
664    info->sType1.mR.y = U16LE_AT(&data[3]);
665    info->sType1.mG.x = U16LE_AT(&data[5]);
666    info->sType1.mG.y = U16LE_AT(&data[7]);
667    info->sType1.mB.x = U16LE_AT(&data[9]);
668    info->sType1.mB.y = U16LE_AT(&data[11]);
669    info->sType1.mW.x = U16LE_AT(&data[13]);
670    info->sType1.mW.y = U16LE_AT(&data[15]);
671    info->sType1.mMaxDisplayLuminance = U16LE_AT(&data[17]);
672    info->sType1.mMinDisplayLuminance = U16LE_AT(&data[19]);
673    info->sType1.mMaxContentLightLevel = U16LE_AT(&data[21]);
674    info->sType1.mMaxFrameAverageLightLevel = U16LE_AT(&data[23]);
675
676    ALOGV("Got HDRStaticInfo from config (R: %u %u, G: %u %u, B: %u, %u, W: %u, %u, "
677            "MaxDispL: %u, MinDispL: %u, MaxContentL: %u, MaxFrameAvgL: %u)",
678            info->sType1.mR.x, info->sType1.mR.y, info->sType1.mG.x, info->sType1.mG.y,
679            info->sType1.mB.x, info->sType1.mB.y, info->sType1.mW.x, info->sType1.mW.y,
680            info->sType1.mMaxDisplayLuminance, info->sType1.mMinDisplayLuminance,
681            info->sType1.mMaxContentLightLevel, info->sType1.mMaxFrameAverageLightLevel);
682    return true;
683}
684
685}  // namespace android
686
687